MBIO 3812 Ex 3-7 Gram Stain

MBIO 3812 Ex 3-7 Gram Stain - MBIO 3812 Exercise 3-7 Gram...

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11 MBIO 3812 Exercise 3-7 Gram Stain In microbiology the Gram stain is the most frequently used and one of the most important stains Dr. Christian Gram
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22 MBIO 3812 Exercise 3-7 Gram Stain What makes the Gram stain so important? 1. It can DIFFERENTIATE between bacteria, which makes identification of the organism a much easier task (the Gram stain is a DIFFERENTIAL STAIN ) 1. It allows one to better examine the size of a bacterium and identify characteristics unique to that bacterium
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33 MBIO 3812 Exercise 3-7 Gram Stain How does the Gram stain differentiate bacterial species? The Gram stain takes advantage of the fact the bacteria have different cell wall structures . Cytoplasmic membrane THICK layer of peptidoglycan Cytoplasmic membrane THIN layer of peptidoglycan OUTER MEMBRANE GRAM POSITIVE GRAM NEGATIVE
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44 MBIO 3812 Exercise 3-7 Gram Stain Gram positive Gram negative Cell membrane YES YES Peptidoglycan THICK LAYER THIN LAYER Outer membrane NO YES (cell has & lipid content) P I N K ink s egative P U R P L E urple ositive you are
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55 MBIO 3812 Exercise 3-7 Gram Stain
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This note was uploaded on 09/26/2011 for the course MBIO 3812 taught by Professor Staff during the Fall '11 term at The University of Oklahoma.

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MBIO 3812 Ex 3-7 Gram Stain - MBIO 3812 Exercise 3-7 Gram...

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